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Chapter – 4 Studies on different types of reactions…..<br />

4.10.4 Physical data of 4-[3-(substituted phenyl)-1-phenyl-1H-pyrazol-4-<br />

yl]-3, 4-dihydro-2H-chromeno [4, 3-d] pyrimidine-2, 5(1H)-dione<br />

(DNJ-1601 to DNJ-1605)<br />

Code Substitution<br />

R<br />

MF<br />

MW<br />

(g/m)<br />

MP<br />

(°C)<br />

Rf<br />

%<br />

Yield<br />

DNJ<br />

1601<br />

H C26H18N4O3 434 278-280 0.50 48<br />

DNJ<br />

1602<br />

4-NO2 C26H17N5O5 479<br />

288-290<br />

(dec.)<br />

0.53 51<br />

DNJ<br />

1603<br />

3-NO2 C26H17N5O5 479<br />

294-296<br />

(dec.)<br />

0.51 54<br />

DNJ<br />

1604<br />

4-Cl C26H17ClN4O3 468 286-288 0.48 44<br />

DNJ<br />

1605<br />

4-F C26H17FN4O3 452 282-284 0.46 56<br />

Rf value was calculated using Solvent System = Toluene : Ethyl Acetate<br />

(7 : 3)<br />

HN<br />

O<br />

O<br />

Department of Chemistry, <strong>Saurashtra</strong> <strong>University</strong>, Rajkot – 360 005 233<br />

NH<br />

O<br />

N<br />

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